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Finding the Fourth Proportional to 29,320.72, 40,447.72 and 18,547.46

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Solution

The fourth proportional to 29,320.72, 40,447.72 and 18,547.46 is: 25,586.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,320.72 : 40,447.72 = 18,547.46 : x
  2. Step 2: Convert to fraction form
    29,320.72/40,447.72 = 18,547.46/x
  3. Step 3: Cross multiply
    29,320.72x = 40,447.72 × 18,547.46
  4. Step 4: Simplify right side
    29,320.72x = 750,202,468.79
  5. Step 5: Solve for x
    x = 750,202,468.79/29,320.72
  6. Step 6: Final answer
    x = 25,586.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.